valid怎么记,valid的词根词缀巧记速记方法-怎么记单词

valid argument正确的论证
valid period 有效期限
valid contract 有效合同
valid until 有效期至
valid certificate 有效证书
be valid for 有效期为
valid visa 有效签证
the holder of a valid passport 有效护照的持有人

单词例句

There are valid concers about theasymptomatic infections.
对无症状感染者的担忧是合理的。
My visa is only valid for 3 months.
我的签证只有三个月有效期。
Lawyer says the document is a valid contract.
律师说这是个有效的合同。
This contract is legally binding and valid until the end of the year.
这份合同具有法律约束力，有效期至年底。
Your passport has expired, so it's no longer valid for travel.
你的护照已经过期，所以不再适用于旅行。
The promotion code is valid only for online purchases.
促销代码只适用于在线购买。
All opinions expressed in this article are valid and worthy of consideration.
本文中表达的所有观点都是有道理的，值得考虑。
The theory has been widely accepted as valid by the scientific community.
这一理论已被科学界广泛接受为有效的。
Your ticket is not valid for this train service.
你的票不适用于这次列车服务。
The argument presented is logically valid but ethically questionable.
提出的论点在逻辑上是合理的，但在道德上是有问题的。
A valid driver's license is required to rent a car.
租车需要有效的驾驶执照。
In mathematics, a valid proof must follow a set of established rules.
在数学中，有效的证明必须遵循一套既定的规则。
Her argument was not only valid but also persuasive.
她的论点不仅有效，而且很有说服力。

考试真题例句(机器翻译仅供参考)

全部

考研

四级

考研Certainly, there are valid concerns about the patchwork regulations that could result if every state sets its own rules.

当然，如果每个州都制定自己的规则，那么可能会导致各自为政的法规，对此存在合理的担忧。

2012年考研阅读原文

考研Here again, evidence had to be economic in order to be valid.

在这里，证据必须是经济的才能有效。

2010年考研翻译原文

考研The evidence had to be economic in order to be valid.

证据必须是经济的才能有效。

2010年考研翻译原文

四级However, you do not have to wear a seat belt if you reversing your vehicle; or you are making a local delivery or collection using a special vehicle; or if you have a valid medical certificate which excuses you from wearing it.

但是，如果您倒车，则不必系安全带；或者您正在使用特殊车辆进行本地交付或收集；或者如果你有一份有效的医疗证明，可以免除你戴它。

1989年1月英语四级真题

四级Each of these philosophies is valid and, it has to be said, my son loves visiting his aunt’s house.

这些哲学中的每一个都是有效的，不得不说，我儿子喜欢去他姑姑家。

2008年12月英语四级考试真题

考研The goal of all will be to try to explain to a confused and often unenlightened citizenry that there are not two equally valid scientific theories for the origin and evolution of universe and life.

所有这些的目标都是试图向困惑且往往无知的公民解释，关于宇宙和生命的起源和进化，没有两种同等有效的科学理论。

1996年全国攻读硕士学位研究生入学考试英语试题

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